India was the only settlement that had plumbing. And.And is located south of China and north of the Indian Ocean. Some of India's natural resources are diamonds, purls, water and good soil for there crops because of the monsoons that came by every once in a wile.
Humans impacted the land by planting a bunch of crops and probably digging for diamonds and building houses out of mud bricks that were backed in a oven.
Indians settled here because they had good natural resources of water from rivers coming from the Arabian sea and Bay of Bangle. India has rivers, mountains, good land for crops, diamonds, purls, elephants, horses, cotton fad rick, silk and fur and skins.